Unit3__单元语法课件.ppt

语 法 点 击;语 法 点 击;考点2：宾语从句必须用陈述句语序 不论从句由什么引导词引导，也不论主句是陈述句还是疑问句，宾语从句一律用陈述句语序，即“引导词＋主语＋谓语＋其他”结构。 如： We dont know when will they arrive. (×) We dont know when they will arrive. (√) Could you tell me who is he waiting for? (×) Could you tell me who he is waiting for? (√) ;注意：特殊疑问词作主语时，如果语序本来就是“主语＋谓语”结构，则语序不再变化。如： Please tell me. Who will give us a talk this afternoon？ (合并为一句) →Please tell me ________________ us a talk this afternoon. ;考点3：宾语从句在时态上应遵循时态呼应原则 在宾语从句中，谓语动词时态要受到主句谓语动词时态的制约，一般要遵循以下三条原则： 1．如果主句是祈使句或主句中的谓语动词是一般现在时或一般将来时，则宾语从句可根据实际需要选用时??。如： Mary says she will come back soon. Will you tell us which places you visited during the vacation? ;2．如果主句中的谓语动词是一般过去时，则宾语从句需要使用表示过去的某种时态。如： He said that he played computer games last night. I knew she had cleaned the classroom already. 3．如果宾语从句所表达的是客观事实、真理、自然现象、名言、警句、谚语等，多用一般现在时。如： He said time is money. Our teacher told us that light travels much faster than sound. ;考点4：宾语从句的“否定转移” 当主句的谓语动词为think, believe等词，且主语为第一人称时，从句中的否定词not应转移到主句谓语动词。如： I think. She cant come.(合并为一句) →I dont think she can come. ;考点5：宾语从句的简化结构 由特殊疑问词引导的宾语从句通常可以简化成“特殊疑问词＋不定式”结构，此时主从复合句也就变成了简单句，但简化必须符合以下两种条件： 1．简单句的疑问词为原宾语从句的引导词； 2．原从句的主语应与主句的主语或间接宾语一致。 I dont know what I should do next.(改为简单句) →I dont know ____________________. ;考点6：含有宾语从句的复合句的反意疑问句 1．陈述部分是“I/We think (know, believe, suppose, consider)＋that从句”或者是“Im/Were sure that; Im/Were afraid that; I/We hope that; It seems that”时，附加疑问部分的主语应和从句一致，但需注意否定前移的情况。如： I dont think he is right, ____________？ Im sure that you know him well, ______________？;2．如果主语是其他人称，附加疑问部分的主语和主句一致。如： Your father believed you could succeed, ______________？ Kate doesnt know if Jim is a good singer, ______________？ ;实 战 演 练;(　　)2.[2013·济宁] — Do you know________？ —Yes, I do. He went by skateboarding! A．whether Paul will go or not B．when will Paul go to the party C．how Paul went to the party D．how did Paul go to the party ;(　　)3.[2013·潍坊] The woman asked the policeman where ________． A．the post office is B．was the